TY  - RPRT
TI  - Range estimation by optical differentiation.
AU  - H Farid
AU  - E P Simoncelli
PY  - 1998
DO  - 10.1364/josaa.15.001777
UR  - https://pubmed.ncbi.nlm.nih.gov/9656478/
ID  - 9656478
ER  -